I guess it depends what you are used to. I know now that it's the "norm" in Star Alliance not to earn if the operating carrier isn't also Star, but in the other alliances, and in the non-aligned world, it is STRANGE to have your flightcode on ANY flight which ends up not earning in the programme of the codesharing partner.

But EY is strange in a slightly different way.

I have noticed now, having taken codeshares of several airlines on EY metal, that EY often disregards the booked flightcode and credits the miles as if it was booked on the EY native flightcode if you credit to Etihad Guest.

Here's how the A3 codeshares eventually posted in my Etihad Guest account (as EY "W"), and how the e-ticket was issued by Aegean (as A3 "Z").